Science grades 5-8: home experiments and Zoom

Our six students in the science 5-8 class meet three times a week on Zoom for far-ranging discussions… and to show their results of their home experiments growing sunflowers hydroponically.  Some of the discussions start from sections in the book we’ve used at time, How Science Works, with extensions well beyond the book from student […]

Elephant toothpaste

Monday, 10 February 2020: we turned the famous elephant toothpaste demonstration into a real science experiment, in our grades 5-8 science class.  The demo is just the mixing of hydrogen peroxide solution with yeast so that the catalase enzyme in yeast rapidly breaks down the peroxide; detergent added earlier allows voluminous foam to form.  We […]